JB/T 8825.1-2011Tools for Whitworth threads - Part 1: Taps (English PDF)
惠氏螺纹刀具 第1部分：丝锥
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Issued by
MIIT
Level / Type
Industry · Recommended
Issue date
December 20, 2011
Implementation date
April 1, 2012
Scope
JB/T 8825.1-2011 is the English-translated version of 惠氏螺纹刀具 第1部分：丝锥.
JB/T 8825.1-2011 is the Chinese standard "Tools for Whitworth threads - Part 1: Taps". Its scope clause reads: This part of JB/T 8825 specifies the type and dimension, designation example, thread tolerance and technical specification of whitworth thread taps (hereinafter referred to as taps).
This part is applicable to manufacturing taps with thread code of 1/8~4 whitworth threads. Its clauses include type and dimension.
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Document preview — JB/T 8825.1-2011
National Standard of the People's Republic of China
- ICS
- 25.100.50
- Replacing
- JB/T 8825.1-1998
Issued by: Ministry of Industry and Information Technology of the People's Republic of China
Contents
- Foreword i
- 1 Scope
- 2 Normative references
- 3 Type and dimension
- 4 Thread tolerance
- 5 Technical specification
1 Scope
This part of JB/T 8825 specifies the type and dimension, designation example, thread tolerance and technical specification of whitworth thread taps (hereinafter referred to as taps).
This part is applicable to manufacturing taps with thread code of 1/8~4 whitworth threads.
2 Normative references
The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of JB/T 8825. For dated references, subsequent amendments (excluding corrections) to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document applies.
JB/T 8825.2 Tool for whitworth threads - Part 2: Manufacturing tolerances on the threaded portion of taps
JB/T 8825.3 Tool for whitworth threads - Part 3: Technical specification for taps
3 Type and dimension
3.1
The type of taps with coarse shank and neck is as shown in Figure 1 and their dimensions are given in Tables 1 and 2.
3.2
The type of taps with fine shank is as shown in Figure 2 and their dimensions are given in Tables 3 and 4.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Normative references
Similar standards
Editions of JB/T 8825.1
| Edition | Title | Revision | Status |
|---|---|---|---|
| JB/T 8825.1-2011 | Tools for Whitworth threads - Part 1: Taps | current edition | Current |
| JB/T 8825.1-1998 | Tools for Whitworth threads - Part 1: Taps | previous edition | Superseded |
This page sells the current edition, JB/T 8825.1-2011. Earlier editions are listed for reference only.
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Related Standards
JB/T 8825.2-1998 — Whitworth thread taps - Thread tolerances
JB/T 8825.2-2011 — Tools for Whitworth threads - Part 2: Manufacturing tolerances on the threaded portion of taps
JB/T 8825.3-1998 — Whitworth thread taps - Technical specifications
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JB/T 8825.1-2011
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